Documents A Trip Through the Universe Part II. What are binary stars?

A Trip Through the Universe Part II What are binary stars? What are constellations? What is an asterism? How do you find Polaris from Ursa Major? What are circumpolar constellations?…

Documents The nature of peculiar red novae with K-M spectra in the outbursts Vitaly Goranskij, SAI, Moscow...

The nature of peculiar red novae with K-M spectra in the outbursts Vitaly Goranskij, SAI, Moscow University in cooperation with Natalia Metlova, SAI Crimean Station, Ukraine;…